US20150143192A1 - Application server and method of error recovery when downloading data files - Google Patents

Application server and method of error recovery when downloading data files Download PDF

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Publication number
US20150143192A1
US20150143192A1 US13/879,620 US201213879620A US2015143192A1 US 20150143192 A1 US20150143192 A1 US 20150143192A1 US 201213879620 A US201213879620 A US 201213879620A US 2015143192 A1 US2015143192 A1 US 2015143192A1
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US
United States
Prior art keywords
file
server
data
data file
servers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/879,620
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English (en)
Inventor
Chung-I Lee
Hai-Hong Lin
De-Yi Xie
Hai-Yun Chen
An-Sheng Luo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scienbizip Consulting Shenzhen Co Ltd
Original Assignee
Hon Hai Precision Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Assigned to HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD. reassignment HON HAI PRECISION INDUSTRY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, Hai-yun, LEE, CHUNG-I, LIN, HAI-HONG, LUO, AN-SHENG, XIE, DE-YI
Publication of US20150143192A1 publication Critical patent/US20150143192A1/en
Assigned to SCIENBIZIP CONSULTING(SHENZHEN)CO.,LTD. reassignment SCIENBIZIP CONSULTING(SHENZHEN)CO.,LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD.
Abandoned legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Definitions

  • Embodiments of the present disclosure relate to file downloading systems and methods, and particularly to an application server and a method of error recovery when downloading data files.
  • a feature of the Internet is the ability to transmit data files from one computer to another using various file transfer protocols such as File Transfer Protocol (FTP) and Hypertext Transfer Protocol (HTTP).
  • File Transfer Protocol FTP
  • HTTP Hypertext Transfer Protocol
  • Data files available to be downloaded from file servers are increasingly larger in size resulting in increased overall download times.
  • downloading files over the Internet can be a time consuming process that often leads to problems occurring during the downloading process.
  • the downloading process is occasionally interrupted due to a network connection between a client devices and a file server. Additionally, a file may be corrupted during a downloading process due to a hardware or software malfunction of the file server, rendering the downloaded file unreadable or otherwise unusable. An interrupted file download must be downloaded again in its entirety, even if most of the file had already been downloaded at the time of the interruption or failure. Therefore, successfully downloading files over the Internet may require multiple attempts to process abnormalities in the file downloading process.
  • FIG. 1 is a block diagram of one embodiment of an application server including a file error recovery system.
  • FIG. 2 is a flowchart of one embodiment of a method of error recovery when downloading data files using the application server of FIG. 1 .
  • FIG. 3 shows one exemplary embodiment of a file configuration table stored in a storage device of the application server.
  • module refers to logic embodied in hardware or firmware, or to a collection of software instructions, written in a program language.
  • the program language may be Java, C, or assembly.
  • One or more software instructions in the modules may be embedded in firmware, such as in an EPROM.
  • the modules described herein may be implemented as either software and/or hardware modules and may be stored in any type of non-transitory computer-readable medium or other storage system. Some non-limiting examples of a non-transitory computer-readable medium include CDs, DVDs, flash memory, and hard disk drives.
  • FIG. 1 is a block diagram of one embodiment of an application server 1 including a file error recovery system 10 .
  • the application server 1 connects to a least one terminal device 2 and a plurality of file servers 3 through a communication network 4 .
  • the application server 1 is a host computer that runs the file error recovery system 10 to process the abnormality when downloading data files from the file servers 3 , and to recover corrupted data file stored in the file servers 3 .
  • the terminal device 2 may be a PC computer, a workstation computer, a PDA device or any mobile electronic device, and is used to download the data files from the file servers 3 through the communication network 4 .
  • Each of the file servers 3 may be a network storage device or server for storing electronic data files to be downloaded by the terminal device 2 .
  • the communication network may be the Internet, an intranet network, a wide area network (WAN) or a local area network (LAN).
  • the application server 1 may further include a storage device 11 , at least one processor 12 , and a display device 13 .
  • the system 10 may include computerized instructions in the form of one or more programs that are stored in the storage device 11 and executed by the at least one processor 12 .
  • FIG. 1 illustrates only one example of the application server 1 , other examples may include more or fewer components than illustrated, or have a different configuration of the various components in other embodiments.
  • the storage device 11 stores a file configuration table for recording storage information of all the data files to be downloaded from the file servers 3 .
  • the file configuration table includes a file name of each of the data files stored in each of the file servers 3 , an identification (ID) of each of the file servers 3 , and a file storing state of the data files indicating which file server 3 stores the data files.
  • a data file whose file name is “34ced40f2b614a1SZ06” is stored in four file servers 3 whose IDs are “KS”, “SZ”, “TW” and “US.”
  • the ID “KS” indicates that the file server 3 is located in KunShan area
  • the ID “SZ” indicates that the file server 3 is located in ShenZhen area
  • the ID “TW” indicates that the file server 3 is located in Taiwan
  • the ID “US” indicates that the file server 3 is located in the United states.
  • the characterizations “0” and “1” indicate the storing state of a data file
  • “0” indicates that the data file does not exist in a file server 3
  • “1” indicates that the data file does exist in a file server 3 .
  • each of the file servers 3 is located in a different area, such as KunShan and ShenZhen in China, in Taiwan, or in United States of America.
  • the file servers 3 are divided into different groups according to the different locations. Referring back to FIG. 1 , the file servers 3 are logically divided into a first file server 3 a and a second file server 3 b according the location of each of the file servers 3 .
  • the system 10 ensures that the terminal device 2 downloads a data file from one of the file servers 3 (i.e., the second file server 3 b ) when the data file is unsuccessfully downloaded from another file server 3 (i.e., the first file server 3 a ), and synchronizes the data file from the second file server 3 b to enable recovery of the unsuccessfully downloaded data file from the first file server 3 a.
  • the file error recovery system 10 includes a first download module 101 , a second download module 102 , and an abnormality processing module 103 .
  • the modules 101 - 103 may comprise computerized instructions in the form of one or more programs that are stored in the storage device 11 and executed by the at least one processor 12 .
  • the storage device 11 may be an internal storage system, such as a random access memory (RAM) for temporary storage of information, and/or a read only memory (ROM) for permanent storage of information.
  • RAM random access memory
  • ROM read only memory
  • FIG. 2 is a flowchart of one embodiment of a method of error recovery when downloading files using the application server 1 of FIG. 1 .
  • the method is performed by execution of a computer-readable program code by at least one processor 12 of the application server 1 in FIG. 1 .
  • additional steps may be added, others removed, and the ordering of the steps may be changed.
  • the first download module 101 receives a file downloading request from the terminal device 2 .
  • the file downloading request includes an IP address of the terminal device 2 , and a file name of a data file to be downloaded from one of the file servers 3 .
  • the first download module 101 finds the first file server 3 a nearest to the terminal device 2 according to the file downloading request.
  • the first download module 101 searches all the file server 3 to find the first file server 3 a according to the internet protocol (IP) address of the terminal device 2 , and determines whether the data file exists in the first file server 3 a according to the file name and the recorded file storing state of the data file.
  • IP internet protocol
  • step S 23 the first download module 101 downloads the data file from the first file server 3 a to the terminal device 2 if the data file exists in the first file server 3 a.
  • step S 24 the first download module 101 determines whether the data file has been successfully downloaded from the first file server 3 a. If the data file has been successfully downloaded from the first file server 3 a, the procedure is ended. If the data file has not been downloaded successfully from the first file server 3 a, step S 25 is implemented. In the embodiment, if the data file has not been successfully downloaded from the first file server 3 a, the first download module 101 determines that the data file may be damaged in the first file server 3 a.
  • the second download module 102 searches the file configuration table to find all remote file servers 3 which are away from the first file server 3 a.
  • the file configuration table includes a file name of each of the data files stored in each of the file servers 3 , an identification (ID) of each of the file servers 3 , and a file storing state of the data files indicating which file server 3 stores the data files.
  • the second download module 102 selects one of the remote file servers 3 which does have the data file, as the second file server 3 b.
  • the second download module 102 determines whether the data file exists in the remote file servers 3 according to the file storing state of the data file, and selects a remote file server 3 which has the data file, as the second file server 3 b.
  • the second download module 102 finds two remote file servers 3 whose ID is “KS” and “TW”, and checks the file storing state of the data file to determine one of the remote file servers 3 , whose IDs are “KS” and “TW,” as the second file server 3 b.
  • step S 27 the second download module 102 downloads the data file from the second file server 3 b through the communication network 4 .
  • step S 28 the second download module 102 determines whether the data file has been successfully downloaded from the second file server 3 b. If the data file has been successfully downloaded from the second file server 3 b, step S 29 is implemented. If the data file has not been downloaded successfully from the second file server 3 b, step S 30 is implemented.
  • step S 29 the abnormality processing module 103 synchronizes the data file from the second file server 3 b to recover the data file of the first file server 3 a. That is to say, the abnormality processing module 103 sends the downloaded data file to the first file server 3 a, and stores the downloaded data file into the first file server 3 a to update, correct, and complete the incomplete or corrupted data file stored in the first file server 3 a.
  • step S 30 the abnormality processing module 103 records abnormality information of the data file downloading process when the data file has not been downloaded from the second file server 3 b successfully, displays the abnormality information on the display device 13 , and then step S 26 is repeated to select another remote file server 3 to download the data file.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Transfer Between Computers (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
US13/879,620 2012-04-28 2012-07-18 Application server and method of error recovery when downloading data files Abandoned US20150143192A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN2012101298926A CN103379167A (zh) 2012-04-28 2012-04-28 多点同步存储的文件下载异常处理系统及方法
CN201210129892.6 2012-04-28
PCT/CN2012/078806 WO2013159462A1 (zh) 2012-04-28 2012-07-18 多点同步存储的文件下载异常处理系统及方法

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US20150143192A1 true US20150143192A1 (en) 2015-05-21

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US13/879,620 Abandoned US20150143192A1 (en) 2012-04-28 2012-07-18 Application server and method of error recovery when downloading data files

Country Status (4)

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US (1) US20150143192A1 (zh)
CN (1) CN103379167A (zh)
TW (1) TW201344574A (zh)
WO (1) WO2013159462A1 (zh)

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US20150081647A1 (en) * 2013-09-17 2015-03-19 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Server and method for updating data of server

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CN107196777A (zh) * 2016-03-14 2017-09-22 阿里巴巴集团控股有限公司 一种应用处理的方法和装置
CN109814887A (zh) * 2019-01-23 2019-05-28 广州奇艺果信息科技有限公司 一种可远程扩展兼容安卓游戏的街机系统

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US20040268177A1 (en) * 2003-06-06 2004-12-30 Minwen Ji Distributed data redundancy operations
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TW201344574A (zh) 2013-11-01
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Owner name: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD

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